import java.util.Scanner;

public class Supermarket {
    public static void main(String[] args) {
        double toothbrush=8.8;   //牙刷价格
        double towel=10.0;        //毛巾价格
        double cup=18.8; 		    //水杯价格
        double apple=12.5;        //苹果价格
        double banana=15.5;       //香蕉价格
        int i=0;
        String a="Y";
        System.out.println("-------------黑马小商城-------------");
        System.out.println("1.牙刷的价格为："+toothbrush+"元");
        System.out.println("2.毛巾的价格为："+towel+"元");
        System.out.println("3.水杯的价格为："+cup+"元");
        System.out.println("4.苹果的价格为："+apple+"元");
        System.out.println("5.香蕉的价格为："+banana+"元");
        while(a.equals("Y")){
            Scanner scl = new Scanner(System.in);
            System.out.println("请输入你需要购买商品的序列号：");
            i=scl.nextInt();
            switch (i){
                case 1:
                    System.out.println("请输入你需要购买牙刷的数量:");
                    int toothbrushnnumber=scl.nextInt();
                    double toothbrushnnum=toothbrushnnumber*toothbrush;
                    System.out.println("你购买了牙膏"+toothbrushnnumber+"支,需要花费"+toothbrushnnum+"元");
                    System.out.println("需要继续购买请输入Y,否则输入N");
                    a=scl.next();
                    break;
                case 2:
                    System.out.println("请输入你需要购买毛巾的数量:");
                    int towelnumber=scl.nextInt();
                    double towelnum=towelnumber*towel;
                    System.out.println("你购买了毛巾"+towelnumber+"个，需要花费"+towelnum+"元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
				    a=scl.next();
                    break;
                case 3:
                    System.out.println("请输入你需要购买水杯的数量:");
			        int cupnumber=scl.nextInt();
                    double cupnum=cupnumber*cup;
                    System.out.println("你购买了水杯"+cupnumber+"个，需要花费"+cupnum+"元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
					a=scl.next();
                    break;
                case 4:
                    System.out.println("请输入你需要购买苹果的数量:");
				    int applenumber=scl.nextInt();
				    double applenum=applenumber*apple;
				    System.out.println("你购买了苹果"+applenumber+"斤，需要花费"+applenum+"元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
		            a=scl.next();
				    break;
                case 5:
				    System.out.println("请输入你需要购买香蕉的数量:");
                    int banananumber=scl.nextInt();
                    double banananum=banananumber*banana;
                    System.out.println("你购买了香蕉"+banananumber+"斤，需要花费"+banananum+"元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
		            a=scl.next();
                    break;
            }
        }
        System.out.println("期待您的下次光临!");
    }
}
